Automotive union main gear
SUBSTANCE: invention relates to machine building and may be used in transport facilities. Proposed main gear comprises drive conical gear 1 running in conical bearings 2, 3 fitted in sleeve 4. Sleeve 4 is elongated radially and secured in reduction gear case 5 by bolts 6 via shims 7. Driven spur gear 8 is fitted on splined shank of gear 1. Master differential has solid cup 10 accommodating differential pinions 11 running on spider 12 splined onto drive shaft 13. Half-axle gears 14, 15 are engaged with differential pinions 11. Gear 14 is made integral with drive sour gear 16. Gear 15 runs in conical bearing 17 fitted in elongated part of sleeve 4.
EFFECT: simplified assembly of main gear.
The invention relates to mechanical engineering and can be used in vehicles.
Known anadromous main transmission containing a leading bevel gear mounted on conical bearings located in the glass, which is bonded with the gear, the bevel gear that engages with a leading bevel gear, center differential, with a solid Cup, in which satellites are rotating on the d-pad, which is connected through the slot with the input shaft, half-shaft gears, one of which is made integral with the leading cylindrical gear, and the other installed on the conical bearing is pressed into the gear housing (see application DE 102005021311 A1, publ. 22.12.2005).
A disadvantage of the known constructions are large radial dimensions of the transmission, so as to accommodate the conical bearing polovoy gear center differential and installation of glass leading bevel gear must be in gear housing separate tides in the radial direction, resulting in increased radial dimensions of the crankcase and, as a consequence of all of the main transfer.
Closest to the claimed technical solution of the essential features and achieved technical result is a continuous main gear, tereasa leading bevel gear, mounted on tapered bearings that are located in secured to the gear housing sleeve, a cylindrical driven gear that engages with a leading bevel gear, center differential, integral Cup which satellites are rotating on the d-pad, which is connected through the slot with the input shaft, half-shaft gears, one of which is made integral with the leading cylindrical gear and the other mounted on the conical bearing, located simultaneously in the hole of the housing and the flange of the Cup bearing the leading bevel gear (see US patent No. 6425840, IPC B60K 17/16, 17/36; F16H 48/30, publ. 30.07.2002).
A disadvantage of the known technical solution is the complexity of correct and accurate installation of tapered bearing polovoy gear in the main transmission, due to the fact that when adjusting toothed conical gear you need to move the Cup bearings leading bevel gear in the axial direction, but you must also move the bearing polovoy gear simultaneously with the end face of the gear case to the end surface of the bearing tightly to both ends and Carter, and glass. To do this, you must perform the manufacturing operation joint processing ends of the housing and the Cup Assembly, but is this case is not excluded the possibility of getting into the bearing cavity shavings or fine abrasive, that will cause breakage of the site. If joint processing ends not to, in this case bearing polovoy gear set with the bias that will result in rapid bearing failure.
The task, which directed the claimed technical solution is to simplify Assembly main gear due to more simple adjustment of bevel gearing and provide a slight radial dimensions of the main transfer.
To solve the problem in passing the main gear of a vehicle, containing a leading bevel gear mounted on tapered bearings that are located in secured to the gear housing glass connected with said cylindrical gear driven gear, center differential, integral Cup which satellites are rotating on the d-pad, which is connected through the slot with the input shaft, half-shaft gears, one of which is made integral with the leading cylindrical gear and the other mounted on the conical bearing, the body is made elongated in the radial direction and fixed to the gear housing through a package of shims, with a conical bearing polovoy gear installed in the elongated part of the glass.
There is the following contradiction.
For the forgiveness and more accurate adjustment of the toothed conical gear necessary bearing polovoy gear set only in the gear case, but to do this in the crankcase, you must have a place to put the outer ring of the bearing, which can be provided as follows:
- to increase the radial dimensions of the main gear, but this is unacceptable due to limited space, the main transmission in the vehicle;
- reduce the size of the bearing, but it will reduce the durability of the main transmission.
The claimed technical solution distinctive features, namely, that the body is made elongated in the radial direction and fixed to the gear housing through a package of shims, with a conical bearing polovoy gear is installed in the elongated part of the glass, allowed to simplify the adjustment of the toothed conical gear and thus to simplify Assembly main gear in General, but it provided a slight radial dimensions of the main transfer.
Thus, the set of essential features that characterize established main transmission, allow to resolve the above contradiction.
Based on the above we can conclude that the proposed solution meets the patentability requirements of "novelty" and "inventive step".
The claimed technical solution is illustrated by the drawing, which shows a continuous main re the ache of vehicles in the section.
Communicating the main transmission of the vehicle includes a leading bevel gear 1 mounted on conical bearings 2 and 3, which are located in the glass 4. The cups 4 are elongated in the radial direction and fixed to the crankcase 5 gear bolts 6. Between the end surfaces of the glass 4 and the housing 5 pack installed 7 shims, which has a preliminary thickness. On spline shaft gear 1 set cylindrical driven gear 8, is fixed by a nut 9.
The center differential 10 has an integral Cup 11, which are the satellites 12, rotating the cross-piece 13, which is connected through the slot with the drive shaft 14. With satellites 12 half-shaft geared gears 15 and 16. The gear 15 is made integral with the leading cylindrical gear 17 and the gear 16 mounted on the conical bearing 18, which is mounted in the elongated part of the glass 4.
The lock Assembly main gear is as follows.
First in the Cup 4 is set to a leading bevel gear 1 with adjusted conical bearings 2 and 3, then on the splined shaft gear 1 is mounted a cylindrical driven gear 8 and is tightened by a nut 9. After that, leading bevel gear 1 Assembly with cups 4 is installed in the crankcase 5 gear DG is already is a package of 7 shims and tightened evenly by at least four bolts 6. Then measured the adjustment parameters of bevel gearing leading bevel gear 1, i.e. backlash and contact patch. When the negative results of the measurements produce the dismantling of gears 1 with the glass 4, change the thickness of the package 7 shims and then repeat the previous operation of the Assembly. When getting positive results of measurements of parameters of the conical engagement in the elongated portion of the Cup 4 is set to half-shaft gear 16 is pressed by the inner ring of the bearing 18. Later in the crankcase 5 is mounted in the center differential 10, half-shaft gear 15 and the driven shaft 14.
The claimed technical solution to facilitate Assembly main gear due to more simple adjustment of bevel gearing, it provides a slight radial dimensions of the main transfer.
The claimed technical solution to meet the requirement of industrial applicability and possible to implement on standard manufacturing equipment.
Communicating the main transmission of the vehicle containing the leading bevel gear mounted on tapered bearings that are located in secured to the gear housing glass connected with said cylindrical gear driven gear, m is roseway differential in whole Cup which satellites are rotating on the d-pad, which is connected through the slot with the input shaft, half-shaft gears, one of which is made integral with the leading cylindrical gear and the other mounted on the conical bearing, characterized in that the glass is made elongated in the radial direction and fixed to the gear housing through a package of shims, with a conical bearing polovoy gear is installed in the elongated part of the glass.
SUBSTANCE: invention relates to wheeled vehicles. Proposed final drive comprises reduction gear case 1 and cover 2 with crown gear wheel 3 engaged via threaded elements 4. Case element axial zone has rolling bearing seats. Drive shaft runs in said bearings. Said drive shaft is made up of input shaft 5 and output shaft 6 whereon flange 9 is splined. Sun gear 12 is mounted at input shaft center while forward and underdrive gear throw-in clutch 13 with synchro unit 14 is fitted nearby output shaft end. Internal end of output shaft 6 supports three-pin pinion frame 18, its pins supporting pinions 18 running in bearings 17. Underdrive gear throw-in clutch 19 with synchro unit 20 is fitted at output shaft center.
EFFECT: longer life of planetary reduction gear, higher traction on drive wheels.
4 cl, 2 dwg
FIELD: machine building.
SUBSTANCE: differential consists of power elements, of devices for locking and unlocking kinematic link between power elements and of lock members. As power elements there are used worms and worm gears forming self-braking worm pairs. As devices for locking and unlocking kinematic link between power element there are used controlled gear drives of worms from output shafts. The gear drives have similar gear ratios with worm pairs.
EFFECT: raised reliability of differential.
FIELD: machine building.
SUBSTANCE: converter of gear ratio of transmission consists of planetary differential with driving carrier (2) and two central gears (5, 6) different in diametre. One of central gears (5) transfers rotation to output shaft (7). Second central gear (6) transfers rotation via reducer (8) shifting direction of rotation and friction clutch (9), driven disk of which is rigidly coupled with the output shaft, also to output shaft (7). Both central gears rotate the output shaft in one direction, but have different speed of rotation. Difference of rotation speed is compensated with the friction clutch also distributing load between arms of the differential.
EFFECT: decreased losses and simplification of design.
3 cl, 1 dwg
FIELD: machine building.
SUBSTANCE: invention relates to machine building field, particularly to control methods of differentials' blocking of multi-driving wheeled machines. Control method of differential' blocking of multi-driving wheeled machines consists in interlocking of interaxle differentials for particular intervals at achievement of threshold valuation of miscoordinations of kinematic parametres of connected by them driving wheels and deblocking of differentials. Additionally deblocking of interaxle differentials is implemented at achievement of miscoordinations of kinematic parametres of driving wheels lower the values, defined by formula.
EFFECT: there is achieved effectiveness increase of running system and tractive properties of wheeled machine.
FIELD: machine building.
SUBSTANCE: invention relates to automobile production field, and also transportation equipment. Controllable interwheel (interaxial) differential contains casing (1), in which there are located input shaft (2) with toothed wheel (3), intermediate shaft (4), output shafts (7,8), controlling drive, shaft (5) of controlling drive with toothed wheel (6), lock-up clutch, shaft (9) of blocking mechanism with bevel gear (10), installed on inetrmidiate shaft (4) follower gear (11) of main drive and transmission toothed wheels (12, 13), connected to follower gear of main gear, two symmetric cycloidal reducer (CR), drive pinions (14, 15) of which are implemented at one with driving heliac wheels of these CR and are installed on controlling shafts. Intermediate bodies of revolution consists of duplex in pairs satellites (26, 27), which are installed on eccentrics (22, 23) controlling shafts and connected to each other by means of conical enveloping toothed wheels (24, 25), blocking toothed wheel and control drive (8). In the second version of implementation of controllable inter-wheel (inter-axial) differential it is used one control shaft, on which there are installed stages of front and back CR.
EFFECT: invention provides improvement of passability and steerability of vehicle.
3 cl, 2 dwg
FIELD: machine building.
SUBSTANCE: invention relates to machine building, particularly to lock engines of differential. Mechanism of automatic blocking of differential consists of hydraulic pump with toothed wheels, two valves, isolated in open condition by springs and intermediate shafts with intermediate toothed wheels. Mechanism of hydraulic blocking of differential is in the space between differential pinion and axle shaft gear and is enclosed into case. Toothed wheels of hydraulic pump are blocked with two intermediate toothed wheels, which are engaged with other couple of intermediate toothed wheels. Intermediate toothed wheels are blocked to differential pinions. Casing is filled by working liquid for major part of its volume and by its journal bears on two bearings, compressed into semi-axial toothed wheels.
EFFECT: increasing of mechanism durability and providing of blocking of differential at growing of difference between number of revolutions of wheels.
SUBSTANCE: proposed method of controlling multi-drive vehicle differentials consists in locking differentials for preset time intervals, on reaching threshold values of mismatch in cinematic parametres of driving wheels, and in unlocking differentials at expiry of aforesaid time intervals, or on reaching threshold values of controllability ratio. Note here that, in locking differentials of the first drive axle and bogie, differentials of the second and next driving axles and bogie are locked at expiry of certain time intervals, not exceeding the ratio of distance from the first to second and subsequent driving axles and bogie to the speed of multi-drive wheeled vehicle.
EFFECT: increased efficiency of multi-drive wheeled vehicle running gear in adverse weather and road holding conditions.
FIELD: machine building.
SUBSTANCE: invention relates to vehicles, in particular to self-locking differential gears and can be used in both transfer box and wheel gears. The propose vehicle differential gear comprises the housing, final drive, differential gear housing with half shaft gears and cams fitted therein. The said half shaft gears are in mesh with differential pinions. The said cams are helically-cammed with half shaft gears to get in contact with the push rods furnished with rollers. The thrust bearing is fixed on the reduction gear housing, the bearing movable race features a cam-like surface to interact with push rod rollers. The bearing cage inner surface features helical grooves or a diametral bore with through holes. The coupling holds the cage down to the thrust bearing fixed race with the help of plate spring.
EFFECT: mechanical control over differential gear capable of distinguishing between slipping and normal operating conditions.
SUBSTANCE: through hypoid final drive contains crank case (1) of reduction gear, drive collar (2) installed on drive shaft (3) and connected with center differential via gearing. Driving gear (4) is installed on drive shaft (3) and it is connected with driven gear (18) made as one whole with center differential cup (11). One semi-axle pinion (22) of centre differential is connected with driving hypoid gear (7) installed on tapered bearings (5) and (6). Other semi-axle pinion (21) of centre differential is connected with through shaft (25) of rear final drive horizontal axis of which is located below inter-wheel differential gear (26) axis via gearing. Driving gear (15) of gearing is connected with semi-axle pinion (21) and it is installed on bearings (16) and (17). Driven gear (23) is connected with through shaft (25) of rear final drive.
EFFECT: increase of service life of cardan shaft connecting through hypoid final drive with gear-box, increase of service life of hypoid drive.
2 cl, 3 dwg
SUBSTANCE: bevel gear contains casing (1) with opposite axle shaft gears (2, 3) axis of channel whereof forms acute angle with casing rotation axis of channel. On differential pinion axis (6) collets (10) are installed capable of shift along axis. Pinions (4, 5) engage with collets and penetrating into narrowed zone located between axle shaft gears are seized transmitting torque to stopped axle shaft gear and stopping slippage.
EFFECT: increase of bevel gear slippage properties.
FIELD: transport engineering; transmissions of wheeled vehicles.
SUBSTANCE: proposed differential lock control system contains fluid medium supply source with reducing 7, three-position distributor 11, two-chamber cylinder consisting of control space A of lock-up clutch 4 formed by its housing and movable partition 34, and additional diaphragm chamber 6 having its control space Б arranged coaxially and in series relative to control space of lock-up clutch 4. Movable partition 34 is connected with pressure disk 29 by means of rod 30 rigidly connected by one end with pressure disk 29. Rod 30 interacts with diaphragm 32 of additional diaphragm chamber 6, and it passes in its middle part through central part of movable partition 34, being rigidly connected with support plate 33 interacting with partition 34. Space Б of additional diaphragm chamber 6 communicates with three-position distributor 11 selectively communicating said spaces with drain main line 14 and reducing regulated valve 7.
EFFECT: increased capacity owing to automatic reduction of locking at cornering of vehicle and decreased skidding of leading wheel.
FIELD: transport engineering.
SUBSTANCE: proposed final drive contains housing with oil reservoir, driven bevel gear and driving bevel gear with front and rear taper bearings whose outer races are press-fitted in bearing cup, and oil collecting pocket. Holes to let oil in and out are made in housing and bearing cup. Plate-type oil slinger with hole in central part is installed in cup between bearings. Diameter of slinger hole is less than inner diameter of front bearing outer race.
EFFECT: improved efficiency of lubrication of bearing of final drive driving gear.
FIELD: transport engineering; automobiles, tractors, diesel locomotives.
SUBSTANCE: proposed vehicle stepless transmission contains final drive, differential 4 and step-up drive, brake device 13, overrunning clutch 21, damper 22 and regulator 14. Driven gear 3 of final drive is rigidly engaged with case of differential 4. Differential gears 6, 8 are engaged with driven shafts 7, 9. Shaft 7 transmits torque to drive wheels (tracks, screw, etc). Shaft 9 sets brake device 13 into motion through step-up drive. Overrunning clutch 21 and damper 22 are fitted on shaft of brake device 13.
EFFECT: reduced losses of torque, prevention of shock loads.
2 cl, 1 dwg
FIELD: the invention refers to transport machinery.
SUBSTANCE: latching differential has a differential gear 4, a blocker and a control device. The control device has a scheme of measuring and comparison and sensors of a wheels angular speed in the shape of tachometers 11 and 12, kinematically connected with half-axles 9 and 10. The scheme of measuring and comparison includes differential links 13 and 14 and summing units 15 and 16 of angular accelerations, and an electro-chain of connection to a servo-motor 22 has intensifiers 19 and 20 and a relay of time 21. Differential links 13 and 14 are electrically connected with the sensors of wheels angular speeds. The differential realizes automatic blocking only at skidding of any driving wheel and does not react to other exterior disturbing influences. The control device works on the principle of comparison of an angular speeding up of a skidding wheel with given critical meaning equal to maximum possible speeding up at which skidding is still impossible.
EFFECT: decreasing of dynamic loads on transmission and drive and increasing reliability and longevity of a vehicle.
FIELD: transport mechanical engineering.
SUBSTANCE: differential comprises housing (1) with spider (2) and satellites (3), differential gears (4) and (5), locking hydraulic clutch, planet gear, and control system. The locking hydraulic clutch has housing (6) provided with driving friction disks (7) and driven friction disks (8) connected with housing (1). The control system comprises control unit (14), electric motor (15), pickups (16) of angular velocity, pickups (17) of torque, pickups (18) of linear velocity, and pickups (19) of angle of rotation of the steering wheel. The planet gear has carrier (12) provided with two rows of satellites (10) and (11), solar gear (13), and epicycloid gear (9). Solar gear (13) is connected with one of the differential gears (9), carrier (12) is connected with electric motor (15), and epicycloid gear (9) is connected with housing (6).
EFFECT: enhanced efficiency.
FIELD: transport engineering.
SUBSTANCE: proposed wheel has rim of regular shape and center of rotation. To drive the wheel, planetary reduction gear is fitted in wheel rim whose drive gear is planet pinion installed on driving "floating shaft whose axis, taking weight of vehicle applied to wheel, executes complex movement relative to axis of wheel rotation making it possible to: 1) spread projections of axis of rotation (being simultaneously point/line of support) of wheel and point of application of vehicle weight P to wheel on horizontal surface by some distance L; 2) change position of projection of point P on vertical; plane by some height h and provide constantly acting "canting" torque PL on wheel creating effect of eccentric wheel at wheel circumference remaining unchanged and eliminating cyclic loads.
EFFECT: improved cross-country capacity of vehicle, its steerability, efficiency of wheeled propulsor, simplified design.
FIELD: mechanical engineering; road vehicles.
SUBSTANCE: propose antilock system contains control device, remote controlled engine, transmission with driving wheels including clutch, gearbox, propeller shaft, final and differential drives, and vehicle wheels furnished with tachometers. Transmission contains at least two pairs of driving wheels. Gearbox is remote controlled by control device. Interaxle differential is connected to gearbox. Final and differential drives of all driving pairs of wheels remote controlled by control device are connected to interaxle differential, and steerable pairs of wheels are furnished with wheel angular position pickup connected to control device. Control device is made for setting additional pairs of wheels into active state in case of slipping or locking of one of wheels belonging to active pair.
EFFECT: possibility of regeneration of braking energy, increased cross-country capacity of vehicle, possibility of changing over of driving pairs of wheels of vehicle.
FIELD: transport mechanical engineering.
SUBSTANCE: cam-conical differential comprises housing (1), pinion (2) of the differential, carrier (3) with conical satellites (4), two conical differential gears (5), and two braking mechanisms (6). Braking mechanisms (6) are composed of two cylinders (7) and (8). One face of cylinders (7) and (8) has three expansion cams (9), and the other face is flat. Three stop projections (10) are made over periphery of the cylinders of braking mechanisms (6). The cylinders arrest angular rotation and are arranged at an angle of 120° over the periphery of the cylinder. Cylinder (7) of each braking mechanism (6) is rigidly connected with housing (1) of the differential. The smooth face of second cylinder (8) is provided with friction coating (11) that slides over the rim of the differential gear. The expansion cams of the cylinders face each other.
EFFECT: expanded functional capabilities.
FIELD: mechanical engineering.
SUBSTANCE: proposed self-controlled automatic clutch has two outer clutch members and one inner clutch member with two rows of sprockets, locking disk with projections and cups for springs arranged between sprockets and installed for displacement through definite angle relative to inner clutch member, springs and rollers arranged in pairs in wedge-like slots formed between outer clutch member and sprockets. Rollers of one row are installed for engagement with rollers of other row through locking disk to change functions of driving and driven clutch members depending on direction of load. Invention provides distribution of torque between driving axles and driving wheels allowing different rpms of wheels at cornering and when running along rough roads and instantaneous locking and releasing of axles and wheels without assistance of driver.
EFFECT: increased cross country capacity of automobile and stability against skidding.
FIELD: transport and agricultural engineering.
SUBSTANCE: proposed driving axle has housing, drive shaft, final drive in form of drive pinion and driven gear, differential case central hole fitted on bearings in housing and rigidly connected with driven gear, two driven shafts with screw thread, member movably connecting driven shafts by meshing with screw thread through solids of revolution and passing through central hole of differential case coaxially with case for axial displacement in said hole, and springs. Cavities, for instance, semi-spherical ones, are made in central cylindrical hole of differential case. Connecting member is made in form of cylindrical bushing on outer surface of which longitudinal grooves are made, for instance, with semispherical bottom, parallel to its axis, and on ends of inner surface cavities are made, for instance, semispherical ones. Ends of driven shafts from side of differential case are provided with outer thread and are installed in bushing for rotation. Bushing can be displacement both relative to differential case by means of solids of revolution, for instance, balls installed by one half in cavities of inner cylindrical surface of differential case and by other half, in longitudinal outer grooves of bushing and relative to driven shafts, by means of solids of revolution, for instance, balls installed in cavities of bushing and contacting with thread of driven shafts. Driven shafts are provided with stops to limit travel of bushing along driven shaft made, for instance, in form of beads on shafts and coil springs placed between beads and end faces of bushing. Cavities are made on end faces of driven shafts arranged inside differential case in which solids of revolution, for instance, balls are fitted.
EFFECT: simplified design, operation and repair of driving axle improved efficiency of its operation.
3 cl, 3 dwg